Nasty looks are often associated with negative connotations, such as judgement, disapproval, and disdain. However, it is important to recognize that there are antonyms to the phrase "nasty looks" which can convey positive meanings. Some possible antonyms for nasty looks include friendly glances, welcoming expressions, and warm smiles. These antonyms suggest a welcoming atmosphere, conveying acceptance, kindness, and empathy towards others. By projecting these positive expressions, we can create a positive environment and promote a sense of camaraderie instead of driving others away with our negative dispositions.